Apparently Bethel College in Kansas has a history of pranks. Enough so that there's now a website dedicated to collecting all the pranks perpetrated there. The site has a great name: CowsInTheLibrary.com. The name refers to an actual prank at Bethel, but also (perhaps unintentionally) gives a nod to Neil Steinberg's classic book about college pranks, If At All Possible, Involve A Cow.
Bethel's most famous prank is Herman Bubbert, a fictional student "who began appearing on class rolls and in the pages of local newspapers sometime in the late 1950s or early 1960s." Bubbert is now the curator of Cows In The Library. (via mennoweekly.org)